| DOI: | 10.1175/JCLI-D-16-0268.1
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| Scopus记录号: | 2-s2.0-85018952449
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| 论文题名: | Are the central andes mountains a warming hot spot? |
| 作者: | Russell A.M.; Gnanadesikan A.; Zaitchik B.
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| 刊名: | Journal of Climate
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| ISSN: | 8948755
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| 出版年: | 2017
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| 卷: | 30, 期:10 | | 起始页码: | 3589
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| 结束页码: | 3608
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| 语种: | 英语
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| Scopus关键词: | Atmospheric temperature
; Climate models
; Landforms
; Atmospheric circulation
; Climate model simulations
; Fresh water resources
; Global climate model simulations
; Highest resolutions
; Mountain elevation
; Reanalysis
; Surface temperature changes
; Climate change
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| 英文摘要: | Global climate model simulations project that the tropical Andes Mountains of South America, which are particularly vulnerable to climate change because of a reliance on snow and glacial melt for freshwater resources, will experience enhanced warming in the near future, with both higher rates of warming at higher elevations within the mountain range itself and localized enhancement of warming exceeding surrounding areas of the globe. Yet recent surface temperature changes in the tropical Andes do not show evidence for either elevation-dependent warming or regional enhancement of warming on average. However, it remains a possibility that the expected warming trends in this region have begun to manifest in other ways (e.g., in the free atmosphere or at intermediate mountain elevations). This paper proposes evidence from several reanalysis products that there has indeed been a regional enhancement of midtropospheric warming around the central Andes over the past few decades that makes this region stand out as a hot spot within the broader pantropics. This trend is generally not reproduced by historical AMIP climate model simulations, which suggests that the mechanisms through which the atmosphere is warming over the central Andes are not adequately captured by climate models. Possible explanations for localized enhancement of warming in this region are considered. On the other hand, reanalysis products do not consistently exhibit enhanced warming at intermediate mountain elevations in the central Andes as evidenced by the generally moderate rates of change in the freezing-level height, except perhaps in the highest-resolution reanalysis product. © 2017 American Meteorological Society. |
| 资助项目: | NSF, Norsk Sykepleierforbund
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/49661
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| Appears in Collections: | 气候变化事实与影响
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作者单位: | Department of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, MD, United States
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| Recommended Citation: | |
Russell A.M.,Gnanadesikan A.,Zaitchik B.. Are the central andes mountains a warming hot spot?[J]. Journal of Climate,2017-01-01,30(10)
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